AS17557 221.120.200.0/21 CIDR and IP Range Summary.ASN: 17557 - Pakistan Telecommunication Company LimitedHost Count: 2046Addressable IPs: 2048221.120.200.0/24221.120.201.0/24221.120.202.0/24221.120.203.0/24221.120.204.0/24221.120.205.0/24221.120.206.0/24221.120.207.0/24